CVEvulnerability

CVE-2023-34048

9.8 CRITICAL Known exploited Published 2023-10-25 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

VMware vCenter Server Out-of-Bounds Write Vulnerability — VMware vCenter Server

VMware vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol that allows an attacker to conduct remote code execution.

Added to KEV: 2024-01-22
Remediation due: 2024-02-12
Ransomware use: Unknown
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes: https://www.vmware.com/security/advisories/VMSA-2023-0023.html; https://nvd.nist.gov/vuln/detail/CVE-2023-34048

Status: Analyzed
Published: 2023-10-25
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-787

Description

vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution.

Affected configurations

• vmware vcenter server (>= 4.0 <= 5.5) • vmware vcenter server 7.0 • vmware vcenter server 8.0

Weakness · CWE (1)

CWE-787 Out-of-bounds Write weakness

References